20159853

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7559}}^1$

素因数の和:7696

約数の個数: 16

約数和(自身を含む): 30965760

約数和(自身を除く): 10805907

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 7559, 22677, 52913, 158739, 959993, 2879979, 6719951, 20159853]

約数ペア:

[(1, 20159853), (3, 6719951), (7, 2879979), (21, 959993), (127, 158739), (381, 52913), (889, 22677), (2667, 7559)]